For a publication I am required to convert all my nice little GnuPlot (and PowerPoint) pictures from RGB to CMYK. In theory it does not seem so complicated but apparently no non-commercial programme ...

I am trying to use 4 UISliders to change the values of the CMYK and then display the color in a view but I have tried with different formulas and still I don't get the right values, So I found this ...

I have a webpage where I have many pdf documents that are 1 page images in CMYK. I need to convert them to png/jpg to display it on the webpage. I am trying to use PHP native Imagick but stumbled upon ...

Is there a way to use the boost::gil library to write a multi-plane cmyk image to a file that I can look at with an image viewer? Format doesn't matter too much (TIFF would be nice), but I would like ...

Im trying to apply the code posted in this post:
How to convert from CMYK to RGB in Java correctly?
The Answer from the guy named Codo works for me so far, but my source is not a file, its an object ...

I'm trying to get a grasp on the capabilities of the current version of Ghostscript (see also this question that I asked a few days ago). So, I downloaded a "test form" for the PDF/X-4 standard from ...

I'm trying to read an image from a specific URL and convert it from CMYK to RGB. I saved the image into a file manually and used the code from 'How to convert from CMYK to RGB in Java correctly?' to ...

I've just begining to learn postscript and I've worked my way up to creating a PDF (which should be in CMYK) and inserting an image.
However, I have searched and search the internet and downloaded as ...

I am using imagemagick to convert png image to pdf, I am creating the pdf file for printing so CMYK colorspace is required there. From imagemagick png to pdf conversion cmyk output is working fine but ...

I used the twelvemonkeys collection (extending the imageio functionality (very helpful, thank you for that)) to build an image converter (change format, scale, etc.).
Until this converter has to deal ...

Im am working on a project where I need to create a PDF with embedded TIFF files that are in CMYK Color Space and I need to preserve that color space to prevent the colors to become inaccurate in the ...

I’m am trying to create a pdf file from matlab figure using cmyk colors, but facing a problem with umlauts and also some other special characters. Is there any other way to handle this than Latex? The ...

i have a problem when trying to convert a PDF with Colorspace CMYK to a JPEG. The PDF contains no images. If there are any CMYK images everything is fine. Without images the PDF is interpreted as RGB ...

In this question: Convert RGB to CMYK, I got a way to convert RGB int array to CMYK byte array. Now I hope to convert ARGB int array to CMYKA byte array directly instead of working with the resulting ...

This is how I am doing to convert from RGB to CMYK using the more "correct" way - i.e using an ICC color profile.
// Convert RGB to CMYK with level shift (minus 128)
private void RGB2CMYK(int[] rgb, ...

I am using Itext pdf to generate pdfs having images. For CMYK type JPEG images, i am getting pdfs of nearly double the size of the image used. But for the same image's RGB version, the pdf is nearly ...

I have a problem using TCPDF to generate PDF images containing a CMYK PNG file.
The system allows the user to upload photos, which can be JPG, GIF or PNG. ImageMagick converts these images into CMYK ...

I am currently building an online APP which allows users to pick a color for text from a usual javascript color picker. I want to convert the returned value to CMYK and I know there is not one simple ...